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cstructtypedef

What is purpose for different ways of naming of typedef statement?

I've the question about typedef statement.

Here is the code how i always write this statement:

typedef struct name
{

}name_t;

And here is the another example how i can write that:

typedef struct
{

}name;

Question is: what is purpose of that ways?

Solution

  • You need to use the first format if you have to refer to the type before the typedef is completed. This is necessary if the structure contains a pointer to the same type. This comes up when defining linked lists.

    typedef struct name
{
    int value;
    struct name *next;
}name_t

    You can't use name_t *next; inside the structure declaraction, because name_t isn't defined until later.